Studied by 0 people
internal validity
the extent to which a study measures what it sets out to measure
reliability
the extent to which a study is consistent and produces consistent findings
ecological validity
the extent to which the findings of a study can be generalised to real life behaviour
target population
the group of people the psychologist wants to study and apply the findings to
sample
a subject of people from the target population who are selected to take part in the research
representative
a sample is representative if it has the same proportionate characteristics of the target population
population validity
the extent to which the results can be generalised to the target population
individual differences
differences between people
extraneous variables
other variables that may influences the results
dependant variable
the variable you measure
independant variable
the variable you change/manipulate
independent measures
a participant that only takes part in one condition
repeated measures
a participants that takes part in both/all conditions
laboratory experiment
a controlled experiment
operationalise
make variables measurable
the four sampling techniques
opportunity, random, snowball, volunteer/self-selecting sample
demand characteristics
cues in the experiment that communicates to the participants what is expected of them, leading them to subconsciously change their behaviour
confounding variables
when an extraneous variable is not controlled
control condition
where no manipulation is made
Note 
Flashcard (48)